The first person to watch something fall.
OR
The first person to live.
Gallo
Robert Hooke was the first person to observe cells.
He did not. The concept of gravity existed before Newton; everyone who has ever lived has known that things fall. Newton was simply the first person to accurately describe gravity and how it works both on Earth and in space.
Probably the first person who ever existed.
ADAM
AHGDGDGGDGDGSHFEQWDC
Nancy Carrillo
Anybody who lives on Earth experiences gravity.
Galleleo
Discover gravity
galileo.
who was the first person to observe living cells in a drop of pond water.